Siemens CED63A125 - 125 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens CED63A125—a 125 A, 600 V, 3-pole bolt-on molded case circuit breaker built for dependable branch circuit protection in panelboards and loadcenters. Designed for installers who demand a secure, durable and predictable protection device, this breaker is a reliable choice for residential, commercial, and light industrial electrical distributions.

What sets the CED63A125 apart is its bolt-on mounting and thermal-magnetic trip system. The secure bolt-on design delivers a rigid, vibration-resistant bus connection that stays tight through periods of operation and maintenance, helping to prevent connection loosening and intermittent trips. The thermal-magnetic trip unit combines a stable thermal element for overload protection with a fast magnetic trip for sudden short-circuit events, providing repeatable protection performance under real-world conditions.

Key benefits in everyday use:

• Secure bolt-on mounting ensures a robust connection to compatible Siemens panelboards and loadcenters, reducing the risk of loose terminals.
• Thermal-magnetic protection delivers precise overload and short-circuit response, helping minimize damage to conductors and equipment.
• 3-pole design supports three-phase systems, suitable for modern commercial and light industrial electrical layouts.
• 125 A, 600 V rating aligns with common branch circuit protection needs in a wide range of installations.
• OEM compatibility designed to work with matching Siemens loadcenters and panelboards for straightforward installation and reliable performance.

Applications and use cases

Ideal for upgrading or expanding distribution in panelboards and loadcenters where a strong, long-lasting protective device is required. Use cases include:

• Replacement in Siemens-based electrical panels where a 125 A, 3-pole unit is specified.
• New installations in commercial spaces that require three-phase protection for feeders and branch circuits.
• Light industrial equipment rooms needing durable, vibration-resistant protection with consistent trip performance.

Technical specifications at a glance

• Manufacturer: Siemens
• Part Number: CED63A125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 125 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Choosing the Siemens CED63A125 means selecting a proven protection device designed to fit seamlessly within Siemens panelboards and loadcenters, delivering reliable performance over time. Whether you’re replacing an aging breaker or configuring a new distribution point, this 125 A, 3-pole bolt-on solution provides the clarity and confidence electricians expect. Order from AmpState today and equip your electrical system with targeted, durable protection that keeps critical circuits safe and functional.